The Removal of Antibiotics in Relation to a Microbial Community in an Integrated Constructed Wetland for Tail Water Deco
- PDF / 2,540,093 Bytes
- 12 Pages / 595.276 x 790.866 pts Page_size
- 66 Downloads / 211 Views
CONSTRUCTED WETLANDS
The Removal of Antibiotics in Relation to a Microbial Community in an Integrated Constructed Wetland for Tail Water Decontamination Anqi Shan 1 & Wenjia Wang 1 & Kyong Ju Kang 1,4 & Dandi Hou 1,2 & Jipeng Luo 1 & Gang Wang 1 & Minghui Pan 1 & Ying Feng 1 & Zhenli He 3 & Xiaoe Yang 1 Received: 9 May 2019 / Accepted: 16 December 2019 # Society of Wetland Scientists 2019
Abstract An integrated constructed wetland (ICW) with six subsystems has been operated for six years (60,000 Ton day−1) and exhibited strong stability and high efficiency for removing conventional pollutants in tail water. This study was aimed to characterize the removal efficiency of antibiotics in relation to bacterial community structure and composition in this integrated constructed wetland. Water samples were taken from different ICW sites in two distinct seasons (i.e. winter and summer). The results showed that concentrations of antibiotics in ICW decreased from influent to effluent with varying removal rates among the different antibiotics (quinolones, ulfonamides and macrolides). The pyrosequencing of 16S ribosomal DNA revealed that the composition of dominant phyla could be grouped into four bacterial clusters and the key discriminant phyla, family or genera from each cluster was strongly associated with the specific physicochemical parameters of water or type of antibiotics. Members of the key phyla (Proteobacteria, Bacteroidetes, Parcubacteria, and Actinobacteria) appeared to play an important role in antibiotics removal. In general, both the concentration of antibiotics and physicochemical parameters of water shaped the bacterial communities. These results improve our understanding of the interactions between antibiotics or water physiochemical parameters and bacterial communities in the integrated constructed wetland. Keywords Antibiotics . Bacterial community . Bioremediation . Integrated constructed wetland
Introduction
Anqi Shan and Wenjia Wang contributed equally to this work. Electronic supplementary material The online version of this article (https://doi.org/10.1007/s13157-019-01262-8) contains supplementary material, which is available to authorized users. * Xiaoe Yang [email protected] 1
Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
2
School of Marine Sciences, Ningbo University, Ningbo 315211, China
3
Indian River Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Fort Pierce, FL 34945, USA
4
Faculty of Environmental Science, University of Science, Pyong yang 00850, Democratic People’s Republic of Korea
In China, approximately 162,000 tons of antibiotics were consumed in 2013, of which 25% were in the eastern China (Zhang et al. 2015). Antibiotics are poorly metabolized in human body, and the residues are excreted in urine and feces, eventually entering surface waters. Their presence and persistence in an aquatic en
Data Loading...
